Seven core harness signal control gun

Abstract

The utility model discloses seven core wire harness signal control gun, including casing, connecting sleeve and detachable interface end, the casing with connecting sleeve insertion and fixed, detachable interface end is detachably connected with connecting sleeve, the insertion terminal of connecting seven core wire harness is assembled in the connecting sleeve, and insertion terminal extends to detachable interface end, and the detachable interface end is equipped with the metal hollow pipe of insertion terminal insertion cooperation. The detachable connection of detachable interface end and connecting sleeve, when the interface end appears the failure, is used for only needs to dismantle the interface end and changes, need not to discard whole seven core wire harness, prolongs the service life of control gun, can reduce the maintenance expense in the operation of truck greatly.

Description

Technical Field

[0001] This utility model relates to the field of seven-core wire harness connection design, specifically to a seven-core wire harness signal control gun. Background Technology

[0002] In the fields of transportation and engineering operations, trucks, as the core carriers undertaking heavy responsibilities such as cargo transport and engineering equipment traction, involve the transmission and control of various critical signals during their operation. The seven-core signal control harness is the core component for realizing this function. This type of harness is widely used in the connection between trucks and towing equipment (such as trailers and engineering work accessories). It integrates multiple key functions such as power supply, brake signal feedback, turn signal indication, and lighting control signals. It serves as the "nerve center" ensuring the safe driving of trucks and the coordinated operation of work equipment. The stability and reliability of its signal transmission directly affect the driving safety and operational efficiency of trucks.

[0003] Currently, most mainstream seven-core signal control harnesses on the market employ a fixed, non-removable interface design. However, during long-term operation, trucks frequently travel on unpaved roads, bumpy sections, or experience dynamic conditions such as rapid acceleration, sudden braking, and steering. The interface is subjected to continuous vibration, impact, and tensile stress. Because the interface and harness are a fixed, integrated structure with no buffer or adjustment space, long-term mechanical action can easily lead to microscopic deformation at the connection point, causing the interface to loosen. A loose interface directly disrupts signal transmission stability, causing signal attenuation, interruption, or interference. This manifests as delayed brake signals, flickering turn signals, and unstable power supply. In severe cases, it can lead to loss of control of the trailer, posing a significant safety hazard. Furthermore, when the interface fails due to loosening, wear, or poor contact, because the interface of the existing seven-core harness cannot be individually removed and replaced, users must discard the entire seven-core harness and replace it with a new one. Utility Model Content

[0004] The purpose of this invention is to provide a seven-core wire harness signal control gun to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A seven-core wire harness signal control gun includes a housing, a connecting sleeve, and a detachable interface end. The housing is inserted into and fixed to the connecting sleeve, and the detachable interface end is detachably connected to the connecting sleeve. The connecting sleeve is equipped with a plug terminal for connecting a seven-core wire harness, and the plug terminal extends to the detachable interface end, which is provided with a hollow metal tube that engages with the plug terminal.

[0006] Preferably, one side of the connecting sleeve is formed with a plug-in platform that connects to the housing, and the other side is formed with a stepped plug-in limiting port, and a snap-fit ​​notch is provided above the plug-in limiting port.

[0007] Preferably, the insertion platform is a flat platform, and the housing is inserted into the connecting sleeve and fixedly connected to the flat platform by screws.

[0008] Preferably, a limiting ring is provided on the outer side of the detachable interface end, and a slot is provided on the limiting ring; The detachable interface end is assembled with the insertion limiting port, and the protrusion formed by the slot is inserted into the insertion notch; Preferably, the detachable interface end is provided with a buckle that allows for quick connection with the device.

[0009] Preferably, a connecting seat is also provided on the top of the connecting sleeve; a button assembly for controlling the disassembly of the detachable interface end is provided on the top of the connecting sleeve.

[0010] Preferably, the button assembly includes a cover and a snap-fit ​​plate; The cover is fastened to the top of the connecting sleeve, and the front end of the cover is fixedly connected to the connecting seat on the connecting sleeve by screws, and the rear end is fixedly connected to the housing by screws. The middle part of the snap-fit ​​plate is hinged to the cover body via a hinge shaft. The front end of the snap-fit ​​plate is formed with a snap-fit ​​notch, and the rear end of the snap-fit ​​plate is formed with a button protrusion. The button protrusion extends to the outside of the cover body. When the detachable interface end is inserted into the connecting sleeve, the snap-fit ​​notch engages with the slot on the detachable interface end. When the detachable interface end is detached from the connecting sleeve, the snap-fit ​​notch separates from the slot on the detachable interface end.

[0011] Preferably, the snap-fit ​​plate has a spring position near the front end, and a spring is installed between the spring position and the cover for resetting the snap-fit ​​plate.

[0012] Preferably, the rear end of the housing is connected to a connector cap for fixing a seven-core wire harness, the seven-core wire harness passes through the connector cap, and the connector cap is threadedly connected to the housing.

[0013] Preferably, the housing is bent at an obtuse angle.

[0014] The beneficial effects are as follows: This application uses a detachable interface end and a detachable connection between the interface end and the connecting sleeve. When the interface end fails, only the interface end needs to be removed for replacement, without discarding the entire seven-core wire harness. This extends the service life of the control gun and can significantly reduce maintenance costs in truck operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is the front view of the seven-core wire harness signal control gun of this utility model; Figure 2 This is a left view of the seven-core wire harness signal control gun of this utility model; Figure 3 yes Figure 2 AA section view; Figure 4 This is a perspective view of the seven-core wire harness signal control gun of this utility model; Figure 5 This is a three-dimensional structural diagram of the button assembly and detachable interface end of the seven-core wire harness signal control gun of this utility model. Figure 6 This is a first three-dimensional structural diagram of the connecting sleeve of the seven-core wire harness signal control gun of this utility model; Figure 7 This is a second three-dimensional structural diagram of the connecting sleeve of the seven-core wire harness signal control gun of this utility model; Figure 8 This is a structural diagram of the insertion terminal and the metal hollow tube of the seven-core wire harness signal control gun of this utility model. Figure 9 This is a three-dimensional structural diagram of the button assembly of the seven-core wire harness signal control gun of this utility model. Figure 10 This is a three-dimensional structural diagram of the seven-core wire harness signal control gun of this utility model.

[0017] The annotations in the attached figures are explained as follows: 1. Housing; 2. Detachable interface end; 201. Limiting ring; 202. Slot; 3. Connecting sleeve; 301. Insertion platform; 302. Insertion limiting port; 303. Snap-fit ​​notch; 304. Connecting seat; 4. Hollow metal tube; 5. Insertion terminal; 6. Button assembly; 601. Cover; 602. Spring; 603. Snap-fit ​​plate; 604. Hinge shaft; 605. Button protrusion; 606. Spring position; 607. Bayonet; 7. Connecting cap; 8. Buckle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] See Figures 1-10 As shown, this utility model provides a seven-core wire harness signal control gun, including a housing 1, a connecting sleeve 3, and a detachable interface end 2. The housing 1 is inserted into and fixed to the connecting sleeve 3, and the detachable interface end 2 is detachably connected to the connecting sleeve 3. The connecting sleeve 3 is equipped with a plug-in terminal 5 for connecting the seven-core wire harness, and the plug-in terminal 5 extends to the detachable interface end 2. The detachable interface end 2 is provided with a metal hollow tube 4 that is inserted into and cooperates with the plug-in terminal 5. During production, the metal hollow tube 4 is cast into the detachable interface end 2.

[0020] In the above technical solution, the detachable connection between the detachable interface end 2 and the connecting sleeve 3 allows for replacement of the interface end only by disassembling it when it fails, without discarding the entire seven-core wire harness. This extends the service life of the control gun and significantly reduces maintenance costs during truck operation.

[0021] In a preferred embodiment of this invention, one side of the connecting sleeve 3 is formed with a plug-in platform 301 for connection with the housing 1, and the other side is formed with a stepped plug-in limiting port 302, with a snap-fit ​​notch 303 above the plug-in limiting port 302. Furthermore, the plug-in platform 301 is a flat platform, and the housing 1 is plugged into the connecting sleeve 3 and fixedly connected to the flat platform by screws. A connecting seat 304 is also provided above the connecting sleeve 3. The flat platform design of the plug-in platform 301, after being fixed to the housing 1 by screws, can prevent relative displacement between the connecting sleeve 3 and the housing 1, ensuring accurate positioning of the internal plug-in terminals 5 and reducing signal transmission deviation.

[0022] To facilitate the assembly of the detachable interface end 2 and the connecting sleeve 3, a limiting ring 201 is provided on the outer side of the detachable interface end 2, and a slot 202 is provided on the limiting ring 201. The detachable interface end 2 is assembled with the insertion limiting port 302, and the protrusion formed by the slot 202 is engaged in the engagement notch 303 of the connecting sleeve 3. The detachable interface end 2 is provided with a buckle 8, which allows for quick connection with the equipment, enabling quick installation and disassembly and reducing costs. The stepped engagement between the limiting ring 201 and the insertion limiting port 302 restricts the axial movement of the detachable interface end 2, and the engagement between the protrusion formed by the slot 202 and the engagement notch 303 restricts radial rotation. This double limiting ensures that the interface does not loosen under bumpy or impact conditions.

[0023] In the above structure, one side of the connecting sleeve 3 is fixed to the housing 1 by the insertion platform 301, and the other side is engaged with the detachable interface end 2 by the insertion limiting port 302 to achieve a precise connection between the housing 1 and the detachable interface end 2; the connecting sleeve 3 is equipped with the insertion terminal 5 to build a signal transmission channel between the seven-core wire harness and the metal hollow tube 4 of the detachable interface end 2, ensuring stable transmission of power, control signals, etc. In some embodiments, a button assembly 6 for controlling the disassembly of the detachable interface end 2 is provided on the upper part of the connecting sleeve 3.

[0024] In this embodiment, reference Figure 3 As shown, the button assembly 6 includes a cover 601 and a snap-fit ​​plate 603. The cover 601 is fastened to the top of the connecting sleeve 3, and the front end of the cover 601 is fixedly connected to the connecting seat 304 on the connecting sleeve 3 by screws, and the rear end is fixedly connected to the housing 1 by screws. The middle part of the snap-fit ​​plate 603 is hinged to the cover 601 through a hinge shaft 604. The front end of the snap-fit ​​plate 603 is formed with a snap-fit ​​607, and the rear end of the snap-fit ​​plate 603 is formed with a button protrusion 605, which protrudes to the outside of the cover 601. When the detachable interface end 2 is inserted into the connecting sleeve 3, the snap-fit ​​607 engages with the slot 202 on the detachable interface end 2. When the detachable interface end 2 is disassembled from the connecting sleeve 3, the snap-fit ​​607 separates from the slot 202 on the detachable interface end 2.

[0025] Further reference Figure 3 As shown, the snap-fit ​​plate 603 has a spring position 606 near the front end, and a spring 602 is installed between the spring position 606 and the cover 601 for resetting the snap-fit ​​plate 603.

[0026] In the initial position, the detachable interface end 2 is assembled with the connecting sleeve 3. At this time, under the action of the spring 602, the latch 607 at the front end of the latching plate 603 engages with the slot 202 of the detachable interface end 2 to achieve latching. When it is necessary to disassemble the detachable interface end 2, pressing the button protrusion 605 causes the latching plate 603 to tilt upwards, thereby disengaging the latch 607 at the front end of the latching plate 603 from the slot 202, thus achieving disassembly.

[0027] As an optional implementation method in this case, refer to Figure 1As shown, a connecting cap 7 for fixing a seven-core wire harness is connected to the rear end of the housing 1. The seven-core wire harness passes through the connecting cap 7, and the connecting cap 7 is threadedly connected to the housing 1. The rear end of the housing 1 cooperates with the connecting cap 7 to fix and limit the seven-core wire harness, preventing displacement due to pulling during use. The housing 1 has an obtuse angle bend, which adapts to the connection angle between the truck body and the trailer equipment, reducing bending stress during wire harness installation. At the same time, the seven-core wire harness signal control gun is more ergonomic, with a moderate size and weight, comfortable grip, and easier to use.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A seven core wire harness signal control gun characterized by: It includes a housing, a connecting sleeve, and a detachable interface end, wherein the housing is inserted into and fixed to the connecting sleeve, and the detachable interface end is detachably connected to the connecting sleeve; The connecting sleeve is equipped with a plug terminal for connecting a seven-core wire harness, and the plug terminal extends to the detachable interface end, which is provided with a hollow metal tube that engages with the plug terminal.

2. The seven-core wire harness signal control gun according to claim 1, characterized in that: One side of the connecting sleeve is formed with a plug-in platform that connects to the housing, and the other side is formed with a stepped plug-in limiting port, and a snap-fit ​​notch is provided above the plug-in limiting port.

3. The seven-wire harness signal control gun of claim 2, wherein: The insertion platform is a flat platform, and the housing is inserted into the connecting sleeve and fixedly connected to the flat platform by screws.

4. The seven-wire harness signal control gun of claim 2, wherein: The detachable interface end is provided with a limiting ring on the outside, and the limiting ring is provided with a slot; The detachable interface end is assembled with the insertion limiting port, and the protrusion formed by the slot is inserted into the insertion notch.

5. The seven-wire harness signal control gun of claim 4, wherein: The detachable interface end is equipped with a buckle that allows for quick connection to the device.

6. The seven-wire harness signal control gun of claim 5, wherein: A connecting seat is also provided above the connecting sleeve; The connecting sleeve is equipped with a button assembly for controlling the disassembly of the detachable interface end.

7. The seven-wire harness signal control gun of claim 6, wherein: The button assembly includes a cover and a snap-fit ​​plate; The cover is fastened to the top of the connecting sleeve, and the front end of the cover is fixedly connected to the connecting seat on the connecting sleeve by screws, and the rear end is fixedly connected to the housing by screws. The middle part of the snap-fit ​​plate is hinged to the cover body via a hinge shaft. The front end of the snap-fit ​​plate is formed with a snap-fit ​​notch, and the rear end of the snap-fit ​​plate is formed with a button protrusion. The button protrusion extends to the outside of the cover body. When the detachable interface end is inserted into the connecting sleeve, the snap-fit ​​notch engages with the slot on the detachable interface end. When the detachable interface end is detached from the connecting sleeve, the snap-fit ​​notch separates from the slot on the detachable interface end.

8. The seven-core wire harness signal control gun according to claim 7, characterized in that: The snap-fit ​​plate has a spring position near its front end, and a spring is installed between the spring position and the cover for resetting the snap-fit ​​plate.

9. The seven-wire harness signal control gun of claim 1, wherein: The rear end of the housing is connected to a connector cap for fixing a seven-core wire harness. The seven-core wire harness passes through the connector cap, and the connector cap is threadedly connected to the housing.

10. The seven-wire harness signal control gun of claim 1 or 8, wherein: The shell is bent at an obtuse angle.

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